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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OOBP | YEAR | Open Postseason Leaderboard |
|---|---|---|---|---|
| 1 | Chad Qualls | .2362 | 2006-2020 | |
| 2 | John Wood# | .2377 | 2029-2031 | |
| 3 | Alfredo Gómez# | .2387 | 2028-2031 | |
| 4 | Bob Schultz | .2417 | 2013-2022 | |
| 5 | Jonathan Papelbon | .2426 | 2008-2021 | |
| 6 | Gilberto Martínez# | .2437 | 2025-2031 | |
| 7 | Eduardo Vázquez# | .2468 | 2023-2030 | |
| 8 | Jason Dickson | .2480 | 1997-2006 | |
| 9 | Dan Woods# | .2506 | 2023-2031 | |
| 10 | Matt J Miller | .2538 | 2003-2016 | |
| 11 | Bryan Kent# | .2562 | 2025-2031 | |
| 12 | Ian Kennedy | .2571 | 2010-2019 | |
| 13 | Luis Anguiana# | .2591 | 2026-2031 | |
| 14 | Ronald Moyer# | .2598 | 2023-2031 | |
| 15 | Heath Bell | .2602 | 2004-2021 | |
| 16 | A J Burnett | .2621 | 1999-2010 | |
| 17 | Duane Wilson | .2625 | 2008-2020 | |
| 18 | Roger Bailey | .2632 | 2003-2014 | |
| 19 | Javier Vazquez* | .2640 | 1998-2013 | |
| 20 | Eddie Morgan* | .2644 | 2005-2019 | |
| 21 | Paul Hale# | .2654 | 2020-2031 | |
| 22 | António Ortíz | .2687 | 2002-2011 | |
| 23 | Roger Clemens* | .2691 | 1984-2006 | |
| 24 | Dan White | .2692 | 2012-2021 | |
| 25 | Chris Sharp# | .2714 | 2021-2031 | |
| 26 | Johan Santana | .2717 | 2000-2015 | |
| 27 | Josh Fogg | .2720 | 2001-2012 | |
| 28 | Jerry Patterson | .2736 | 2002-2015 | |
| 29 | Carlos Jiménez# | .2748 | 2021-2031 | |
| 30 | Daron Maddox | .2762 | 2015-2027 | |
| 31 | Gabe Johnson | .2764 | 2019-2028 | |
| 32 | Daniel Patterson | .2778 | 2017-2029 | |
| 33 | Brad Cochran | .2786 | 2019-2027 | |
| 34 | Kevin Walters | .2787 | 2003-2015 | |
| 35 | Ryan Arnold | .2789 | 2012-2021 | |
| 36 | David Price | .2791 | 2011-2019 | |
| 37 | Henry Moss# | .2805 | 2019-2029 | |
| 38 | Adrian Ackermann | .2806 | 2014-2022 | |
| 39 | Clifton Jackson# | .2808 | 2024-2029 | |
| 40 | Jeff Shoemaker# | .2812 | 2025-2031 | |
| 40 | Jorge Enríquez# | .2812 | 2020-2031 | |
| 42 | Charlie Frohwirth | .2814 | 2012-2024 | |
| 42 | George Burke# | .2814 | 2019-2029 | |
| 44 | Cole Hamels* | .2815 | 2007-2023 | |
| 45 | Roy Ward | .2820 | 2014-2026 | |
| 46 | Raúl López | .2843 | 2000-2016 | |
| 47 | Amdre Nova# | .2846 | 2030-2031 | |
| 47 | Raúl Mateo# | .2846 | 2026-2031 | |
| 49 | Tim Pulliam# | .2847 | 2026-2031 | |
| 50 | Matt Morris | .2849 | 1997-2005 | |
| 50 | Hipolito Pichardo | .2849 | 1992-2008 | |
| 52 | James Ryan# | .2857 | 2017-2027 | |
| 52 | Joel Zumaya | .2857 | 2011-2023 | |
| 54 | Jon Lieber | .2865 | 1994-2009 | |
| 54 | Francisco Ramírez# | .2865 | 2017-2030 | |
| 56 | Barry Zito | .2867 | 2000-2014 | |
| 56 | Jose A Nunez | .2867 | 2001-2012 | |
| 58 | Eric Hillman | .2870 | 1992-2004 | |
| 59 | Ugueth Urbina | .2871 | 1995-2013 | |
| 60 | Zack Greinke* | .2874 | 2005-2020 | |
| 61 | Dennis Redden# | .2878 | 2029-2031 | |
| 61 | Tito Smith# | .2878 | 2020-2031 | |
| 63 | José Torres# | .2879 | 2026-2031 | |
| 64 | Felix Hernandez | .2882 | 2009-2020 | |
| 65 | Alfredo Huerta# | .2895 | 2022-2030 | |
| 66 | Héctor Bernal# | .2908 | 2024-2031 | |
| 67 | Máximo Sánchez | .2919 | 2015-2025 | |
| 68 | Steve Karsay | .2922 | 1993-2007 | |
| 69 | Santiago Herrera | .2928 | 2000-2018 | |
| 70 | Madison Bumgarner | .2933 | 2014-2031 | |
| 71 | Andy Ashby | .2947 | 1991-2002 | |
| 72 | George Connolly# | .2949 | 2018-2031 | |
| 73 | Miguel Moreno# | .2955 | 2020-2031 | |
| 74 | William Pierce# | .2958 | 2025-2031 | |
| 75 | Adelphos Papademetriou | .2959 | 2002-2011 | |
| 76 | Jon Lester | .2960 | 2008-2021 | |
| 77 | Brett Tomko | .2961 | 1997-2004 | |
| 78 | Toki Nagai | .2966 | 2004-2015 | |
| 79 | Lee Myers# | .2970 | 2019-2031 | |
| 80 | Ignacio Reyes# | .2975 | 2028-2031 | |
| 81 | Eric Hurley | .2977 | 2007-2020 | |
| 81 | Carlos Cotter | .2977 | 2008-2020 | |
| 83 | Joakim Soria | .2979 | 2012-2022 | |
| 84 | Robert Dixon# | .2981 | 2019-2031 | |
| 85 | Rick Cederberg# | .2986 | 2025-2031 | |
| 86 | Brandon Webb* | .2987 | 2004-2024 | |
| 86 | Kevin Schaefer | .2987 | 2012-2023 | |
| 88 | Felipe Herrera# | .2993 | 2021-2031 | |
| 88 | Dave Pownall | .2993 | 2014-2027 | |
| 90 | Cisco Castellanos# | .2994 | 2025-2031 | |
| 90 | Juan Velázquez# | .2994 | 2025-2031 | |
| 92 | CC Sabathia* | .3000 | 2001-2019 | |
| 93 | Ken Brandon | .3003 | 2019-2029 | |
| 94 | Dwight Tucker | .3004 | 2011-2027 | |
| 95 | Jeff Samardzija | .3008 | 2009-2021 | |
| 96 | Gary Lefebvre | .3009 | 2002-2016 | |
| 97 | Scott Sanders | .3010 | 1993-2007 | |
| 98 | Roy Halladay* | .3015 | 1998-2014 | |
| 99 | Esteban Loaiza | .3016 | 1995-2006 | |
| 100 | Allen Bailey | .3017 | 2011-2023 |
